... Quadtrees have a wide range of applications, from graphics to image processing to spatial information systems. ... With the advent of the Guide Star Catalog and other large astronomical source lists, an efficient method of storing and accessing such spatial data is necessary. ... We also discuss how the linear quadtree can aid in the correlation of source positions from different astronomical catalogs and how it can be applied to relational databases. ...

JSC History . ... NASA History . ... Search . ... Most of these publications were published by the Government Printing Office as Special Publications in the 4000 - history series. For a listing of all NASA history publications available go to the NASA History Office publications page ( http://history.nasa.gov/publications.html ) . ... Researchers are encouraged to utilize these databases to expedite their research requests and narrow their focus for available materials. ... History Search Index . ...

Ilya M. Livshits . I am a researcher at SAI MSU since 1997, at Stellar Astrophysics Department . I graduated from Physics Department of Moscow State University in 1998. After that i had post-graduate course in Helio-Seismology Laboratory of IZMIRAN (Institute of Terestrial Magnetism, Ionosphere and Radio Wave Propagation of Russian Academy of Science ) (in Troitsk, Moscow). ... stellar activity on solar-type late-type stars; . Solar and stellar magnetic fields; . ...

... Tonight's Sky . ... Sky this Month . ... solar system . ... The Sky This Week: April 1 - 10 . ... Solar eclipse travelogue: Sulawesi delivers a spectacular eclipse . Sky this Week . ... Observe the Solar System . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Tour the Solar System . ... Max Planck Institute for Solar System Research, Gottingen, Germany . ...

... XMM-Newton SOC Home Page Conferences & Meetings . ... General User Support XMM-Newton Helpdesk Users Group . ... Data Analysis SAS News What is SAS? ... Data handling units and production of the relevant software, in collaboration with industry . ... AIV support . ... Participation in the development of the electrical ground support equipment . ... Participation in flight operations definition and in the development of data analysis software . ... Development of data analysis software . ...

... Catalog . Publications . ... Koposov, S., Glushkova, E., Zolotukhin, I. 2008: Automated search for Galactic star clusters in large multiband surveys. ... BibTeX entry ] . ... Glushkova, E.V., Zabolotskikh, M.V., Koposov, S.E., Spiridonova, O.I, Vlasyuk, V.V., Rastorguev, A. S. 2010: Photometry of the poorly studied galactic open star clusters King 13, King 18, King 19, King 20, NGC 136, and NGC 7245 , Astronomy Letters, 36, 75 . ...

As the Universe expands, gravity pulls on the Universe, and slows the expansion down over time. As we look to great distances, we are looking back in time. If we can measure how fast the Universe is expanding in the past, and compare it to how fast it is expanding now, we can see the total gravitational effect of all matter in the Universe. Here we plot the distance between two galaxies as a function of time. ... Universes with lots of material . ...

... I am also a senior researcher at the High Energy Astrophysics department of the Space Research Institute in Moscow, Russia . ... My main research area is X-ray studies of galaxy clusters and their applications for cosmology and physics of the intergalactic medium. ... 2003: Doctor of Sciences, Russian Academy of Sciences: "Observational cosmology and studies of physics of the intracluster medium using X-ray observations of clusters of galaxies" ( thesis in Russian ) . ...

... SOLAR WEB RESOURCES AND RESEARCH SITES LINKS . ... http :// solar .nro.nao.ac.jp/ - The Nobeyama Radioheliograph : daily solar images at 17 GHz. http ://umbra.nascom.nasa.gov/batse/batse_years.html - CGRO BATSE solar flare database at the SDAC. http ://umbra.nascom.nasa.gov/yohkoh_archive.html - The Yohkoh Archive. ftp://140.252.1.21/kpvt/ daily - U.S. National Solar Observatory at Kitt Peak anonymous ftp directories. http ://www.bbso.njit.edu - Big Bear Solar ...

... Department Number . ... Astro Space Center . ... Telephone Number . 7(495) 333 3366 . FAX Number . 7(495) 333 2378 . ... amalin@lukash.asc.rssi.ru . ...

... Site search . ... ISC Kosmotras . Top Management Founder of ISC Kosmotras - Dr. Vladimir A. Andreev News . Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. Dnepr Cluster Mission 2014 6 November 2014. ... Mission profile SHM configuration Reliability Dnepr LV Performance Launch Sites . ... E-mail: info@kosmotras.ru . ...

... Astronomy search engine . ... PhysicsWeb Home Page . ... Sternberg Astronomical Institute . ... Astro Space Center Home Page . ... Landau Institute for Theoretical Physics . ... Astronomy and Space Physics Dept of Kiev University . ... NATIONAL RADIO ASTRONOMY OBSERVATORY Home Page . University of Hawaii - Institute for Astronomy . ... Space Telescope Science Institute Home Page . ... Sky & Telescope: The Essential Magazine of Astronomy . ... Springer LINK - Physics Online Library . ... Home . ...

... Field of research: Extragalactic astronomy. ... NASA Astrophysics Data System (ADS) Abstract Service . ... CADC Home Page . ... CCD Images of Galaxies . ... RUSSIAN LINKS . ... UA Astronomy Personal Home Page - Bill Keel . ... The Shape of the Rotation Curves of Edge-on Galaxies, by A.V.Zasov and A.V.Khoperskov, 2003. ... A Thickness of Stellar Discs, by A.V.Zasov, and D.V.Bizyaev, 2003 . Minimum Velocity Dispersion in Stable Stellar Disks, by A.V.Khoperskov, A.V.Zasov, and N.V.Tyurina, 2003 . ...

... Sir, Maxim Vadisiavovich Tarasenko, a leading Russian independent space researcher was killed by a hit-and-run driver in May. ... In 1992, he published his ground-breaking book Military Aspects of the Soviet Cosmonautics - the first ever independent Russian study on the Soviet military programmes, which immediately became a best-seller and was sought by Russian-speaking space and weapons experts all round the world. ... US National Air & Space Museum . Volunteer Researcher . ...

... What's New? Bad Astronomy . ... News . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Scientific Research and Prejudicial Beliefs . ... John Stossel, a journalist for ABC news, was doing an hour long report on the differences between the sexes titled "Boys and Girls Are Different: Men Women and the Sex Difference". ... One researcher found that seven out of eight brain structures she studied were actually different in men and women. ... 2008 Phil Plait. ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

M obile A stronomical Sy stem of TE lescope- R obots MASTER-II Kislovodsk Lomonosov Moscow State University, Sternberg Astronomical Institute , Moscow Union "Optic" , Kislovodsk Solar Station Latitude = 43 o љ44'.767љN; Longitude = 42 o љ31'.417љE; Altitude = 2067љm MASTERљIIљ(8љsquareљdegress) + MASTERљVWF(VeryљWideљFieldљCameras (FOV=800 square degrees, Timeљresolutionљupљtoљ150љms, with unfiltered m_lim=14m on 5 sec. exposure, and ~10.5m with 0.15 sec) . ... 11h 38m 38.0s , -09d 59m 59s) . ...

... Abstract: We present a search for a low-mass Standard Model Higgs boson produced in association with a z boson decaying to charged leptons at a center-of-mass energy of s\sqrt{s}=1.96~TeV with the D0 detector at the Fermilab Tevatron collider. The search is performed in a large data set of events containing two opposite-sign leptons (electron, muon) and one or two b-tagged jets. 4:00pm, 472 Willamette Hall . ... Abstract: Is the proton's spin carred by only the spins of the three quarks? ...

University Satellites and . Space Science Education . ... News . ... Internet seminars as the new way of Inter-University Aerospace Centre activity . ... In such a dynamic field as remote sensing, the Internet resources already beat traditional libraries and image depositories. ... In 2000-2005 seven Internet-based seminars were held: "Obtaining satellite images over Internet". ... Images of new types. ... Skobeltsyn Institute of Nuclear Physics, Moscow State University, 2005-2006 . ...

... Electronic structure of bulk materials . ... Electronic transport in condensed matter . ... Electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures . ... Magnetic properties and materials . ... Magnetic resonances and relaxations in condensed matter, Mossbauer effect . ... Optical properties, condensed-matter spectroscopy and other interactions of radiation and particles with condensed matter . ...